InChI=1/C16H20N2O4S/c1-16(2)8-14(19)13(15(20)9-16)10-18-11-4-6-12(7-5-11)23(21,22)17-3/h4-7,10,17,19H,8-9H2,1-3H3/p-1/fC16H19N2O4S/h19h/q-1 E81E4D1838202AB5